code: def testExportTool(self):
      # Use the export tool to create the Module.
      module_path = os.path.join(
          self.get_temp_dir(), "half-plus-two-module"
      )
  
      export_tool_path = os.path.join(
          test_utils.test_srcdir(), EXPORT_TOOL_PATH
      )
      self.assertEquals(
          0, subprocess.call([export_tool_path, module_path])
      )
  
      # Test the Module computes (0.5*input + 2).
      with tf.Graph().as_default():
          m = hub.Module(module_path)
          output = m([10, 3, 4])
          with tf.Session() as session:
              session.run(tf.initializers.global_variables())
              self.assertAllEqual(session.run(output), [7, 3.5, 4])
  
file_path: hub/examples/half_plus_two/half_plus_two_test.py
imports: import logging
  import os
  import subprocess
  from distutils.version import LooseVersion
  import tensorflow.compat.v1
  import tensorflow_hub
  from tensorflow_hub import test_utils
label_desc: Use image node_id 1 for calling the HalfPlusTwoTest obj's underlying member method code with example usage: obj.testExportTool() without return types